Hi all,
I’ve been going through various topics here but haven’t found an exact match for the issue I’m experiencing.
My pump has started short cycling.
After reading through some similar cases, I’ve tried a few solutions, but the problem persists.
Here’s what’s happening:
Currently, the pump behaves as follows:
I’ve cleaned the pump filters behind the pump, and there doesn’t seem to be any obstruction causing the issue.
The non-return valve in the water well doesn’t seem to be an obvious issue at first glance. I’m not sure how to properly test it.
Does anyone have any advice or suggestions on what might be causing this?
Thanks in advance!
I’ve been going through various topics here but haven’t found an exact match for the issue I’m experiencing.
My pump has started short cycling.
After reading through some similar cases, I’ve tried a few solutions, but the problem persists.
Here’s what’s happening:
- When I open a water outlet, the pump runs but short cycles after about 12 seconds. Occasionally the short-cycle does not happen.
- I replaced the flow sensor, but that didn’t resolve the issue.
- I swapped the pump controller with one from an MQ3-45 pump. Initially, this seemed to fix the issue, but after approximately 20 on/off cycles, the problem returned.
Currently, the pump behaves as follows:
- It turns on when there’s a water demand, though not immediately—there’s a brief delay until some milliliters of water flow.
- Therefor the internal pressure tank appears to operate as expected.
- First +- 20 open/close cycles after changing the control unit seems to behave as expected, pump will run +-10 seconds after closing water demand, as described in manual.
- The pump also shuts off when water demand stops.
- Short cycle occures 95% of the time
- Water pressure seems fine
- Water flow rate seems fine
I’ve cleaned the pump filters behind the pump, and there doesn’t seem to be any obstruction causing the issue.
The non-return valve in the water well doesn’t seem to be an obvious issue at first glance. I’m not sure how to properly test it.
Does anyone have any advice or suggestions on what might be causing this?
Thanks in advance!